To improve its air quality, Zhengzhou has set specific targets for this year—concentrations of the PM2.5 and PM10 shall not surpass 150 and 79 micrograms per cubic meter, respectively.
Authorities at the county level will be awarded 500,000 yuan (US$77,200) if their pollutant concentrations are one microgram lower than the newly adopted standards. Otherwise, they will be fined the same amount of money.
Any county that reports substandard air quality for three consecutive months will be ordered to shut down all sources of pollution.
Zhengzhou has been plagued by air pollution for a long time. Every month last year, with the exception of November, the city was ranked as one of the ten most polluted cities in China. It was still on the "black" list in the first two months of 2016.
Airbus Standard: ABD 0031
Vertical Flammability Test: ABD 0031- 7.1.2 (AITM 2.0002 B/A)
Smoke Density Test: ABD 0031- 7.3.1 (AITM 2.0007)
Smoke Toxicity Test: ABD 0031- 7.4 (AITM 3.0005)
Heat Release Test: ABD 0031 (AITM 2.0006)
Horizontal Test: ABD 0031- 7.1.3 / -7.1.4 (AITM 2.0003)
45° flammability test: ABD 0031- 7.1.5